Historical notes:
Although strikingly distinctive and occurring immediately beside
the main (and only) north-south highway in the Northern Territory,
this species was only first recognised
as recently as 1978 by Australian botanist
John Maconochie.
in 1978.

Distinguishing features:
Distinguished by the flat leaves with very large numbers of very
narrow leaflets with recurved margins that are persistently tomentose
below, and the slender, greyish male cones.

Distribution and habitat:
Abundant around the Daly River basin and north along the Finniss
Range, from Katherine in the south-east to the north of Litchfield
Park and near the Daly River Police station, with a somewhat disjunct
population in the Spirit
Hills on Bullo River station near the Weastern Australian border. Although
originally described from limestone and named accordingly, this
species occurs on various often non-calcareous substrates such
as sandstones, sandy alluvium and aluminous schists.